Home / 638,187.56-957,395.19-211,748.97

Finding the Fourth Proportional to 638,187.56, 957,395.19 and 211,748.97

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Solution

The fourth proportional to 638,187.56, 957,395.19 and 211,748.97 is: 317,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,187.56 : 957,395.19 = 211,748.97 : x
  2. Step 2: Convert to fraction form
    638,187.56/957,395.19 = 211,748.97/x
  3. Step 3: Cross multiply
    638,187.56x = 957,395.19 × 211,748.97
  4. Step 4: Simplify right side
    638,187.56x = 202,727,445,365.45
  5. Step 5: Solve for x
    x = 202,727,445,365.45/638,187.56
  6. Step 6: Final answer
    x = 317,661.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.